Finding the Third Proportional to 29,474 and 64,078

Step by Step Solution

1. Step 1: Write the proportion equation
   29,474 : 64,078 = 64,078 : x
2. Step 2: Convert to fraction form
   29,474/64,078 = 64,078/x
3. Step 3: Cross multiply
   29,474x = 64,078 × 64,078
4. Step 4: Simplify right side
   29,474x = 4,105,990,084
5. Step 5: Solve for x
   x = 4,105,990,084/29,474
6. Step 6: Final answer
   x = 139,308.89